declare namespace fixture {
    let el: HTMLElement;
    let json: any[];

    function load(...files: string[]): any;
    function load(file1: string, append?: boolean): any;
    function load(file1: string, file2: string, append?: boolean): any;
    function load(file1: string, file2: string, file3: string, append?: boolean): any;
    function load(file1: string, file2: string, file3: string, file4: string, append?: boolean): any;
    function load(file1: string, file2: string, file3: string, file4: string, file5: string, append?: boolean): any;

    function set(...htmlStrs: string[]): HTMLElement | HTMLElement[];
    function set(htmlStr1: string, append?: boolean): HTMLElement | HTMLElement[];
    function set(htmlStr1: string, htmlStr2: string, append?: boolean): HTMLElement | HTMLElement[];
    function set(htmlStr1: string, htmlStr2: string, htmlStr3: string, append?: boolean): HTMLElement | HTMLElement[];
    function set(
        htmlStr1: string,
        htmlStr2: string,
        htmlStr3: string,
        htmlStr4: string,
        append?: boolean,
    ): HTMLElement | HTMLElement[];
    function set(
        htmlStr1: string,
        htmlStr2: string,
        htmlStr3: string,
        htmlStr4: string,
        htmlStr5: string,
        append?: boolean,
    ): HTMLElement | HTMLElement[];

    function cleanup(): void;

    function setBase(fixtureBasePath: string): void;
}